/*************************************************************************
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: IBM Corporation
 *
 *  Copyright: 2008 by IBM Corporation
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/
/*************************************************************************
 * @file 
 * Draw path object.
 ************************************************************************/
/*************************************************************************
 * Change History
 * 2004-2-18 create this file.
 ************************************************************************/
#include	"xfdrawpath.hxx"

XFSvgPathEntry::XFSvgPathEntry()
{	
}

XFSvgPathEntry::XFSvgPathEntry(rtl::OUString cmd)
{
	m_strCommand = cmd;
}

rtl::OUString XFSvgPathEntry::ToString()
{
	assert(m_strCommand.getLength()>0);
	rtl::OUString str = m_strCommand;
	std::vector<XFPoint>::iterator it;

	for( it = m_aPoints.begin(); it != m_aPoints.end(); it++ )
	{
		XFPoint	*pt = it;
		if( !pt )
			continue;
		str += DoubleToOUString(pt->GetX()*1000) + A2OUSTR(" ") + DoubleToOUString(pt->GetY()*1000) + A2OUSTR(" ");
	}
	return str.trim();	
}

XFDrawPath::XFDrawPath()
{
}

void	XFDrawPath::MoveTo(XFPoint pt, sal_Bool absPosition)
{
	XFSvgPathEntry	entry;
	
	if( absPosition )
		entry.SetCommand(A2OUSTR("M"));
	else
		entry.SetCommand(A2OUSTR("m"));
	entry.AddPoint(pt);
	m_aPaths.push_back(entry);
}

void	XFDrawPath::LineTo(XFPoint pt, sal_Bool absPosition)
{
	XFSvgPathEntry	entry;
	
	if( absPosition )
		entry.SetCommand(A2OUSTR("L"));
	else
		entry.SetCommand(A2OUSTR("l"));
	entry.AddPoint(pt);
	m_aPaths.push_back(entry);
}

void	XFDrawPath::CurveTo(XFPoint dest, XFPoint ctrl1, XFPoint ctrl2, sal_Bool absPosition)
{
	XFSvgPathEntry	entry;
	
	if( absPosition )
		entry.SetCommand(A2OUSTR("C"));
	else
		entry.SetCommand(A2OUSTR("c"));
	entry.AddPoint(ctrl1);
	entry.AddPoint(ctrl2);
	entry.AddPoint(dest);

	m_aPaths.push_back(entry);
}

void	XFDrawPath::SmoothCurveTo(XFPoint dest, XFPoint ctrl, sal_Bool absPosition)
{
	XFSvgPathEntry	entry;
	
	if( absPosition )
		entry.SetCommand(A2OUSTR("C"));
	else
		entry.SetCommand(A2OUSTR("c"));
	entry.AddPoint(ctrl);
	entry.AddPoint(dest);
	
	m_aPaths.push_back(entry);
}

void	XFDrawPath::ClosePath(sal_Bool absPosition)
{
	XFSvgPathEntry	entry;
	
	if( absPosition )
		entry.SetCommand(A2OUSTR("Z"));
	else
		entry.SetCommand(A2OUSTR("z"));
	
	m_aPaths.push_back(entry);
}

void	XFDrawPath::ToXml(IXFStream *pStrm)
{
	IXFAttrList	*pAttrList = pStrm->GetAttrList();
	
	pAttrList->Clear();
	//view-box:
	XFRect	rect = m_aRect;
	
	rtl::OUString strViewBox = A2OUSTR("0 0 ");
	strViewBox += DoubleToOUString(rect.GetWidth()*1000) + A2OUSTR(" ");
	strViewBox += DoubleToOUString(rect.GetHeight()*1000);
	pAttrList->AddAttribute( A2OUSTR("svg:viewBox"), strViewBox);
	
	//points
	rtl::OUString	strPath;
	std::vector<XFSvgPathEntry>::iterator it;
	for( it = m_aPaths.begin(); it != m_aPaths.end(); it++ )
	{
		XFSvgPathEntry	*pSvg = it;
		if( !pSvg )
			continue;
		strPath += pSvg->ToString();
	}	
	strPath = strPath.trim();
	pAttrList->AddAttribute( A2OUSTR("svg:d"), strPath);

	SetPosition(rect);
	XFDrawObject::ToXml(pStrm);

	pStrm->StartElement( A2OUSTR("draw:path") );
	ContentToXml(pStrm);
	pStrm->EndElement( A2OUSTR("draw:path") );
}


XFRect	XFDrawPath::CalcViewBox()
{
	double	x1 = 65536;
	double	y1 = 65536;
	double	x2 = -1;	//not quite safe.()
	double	y2 = -1;
	XFSvgPathEntry	*pPath;
	XFPoint	*pPoint;
	std::vector<XFSvgPathEntry>::iterator itPath = m_aPaths.begin();
	std::vector<XFPoint> points;
	std::vector<XFPoint>::iterator itPoint;
	do{
		pPath = itPath;
		points = pPath->m_aPoints;

		for( itPoint = points.begin(); itPoint != points.end(); itPoint++ )
		{
			pPoint = itPoint;
			if( x1>pPoint->GetX() )
				x1 = pPoint->GetX();
			if( x2<pPoint->GetX() )
				x2 = pPoint->GetX();
			
			if( y1>pPoint->GetY() )
				y1 = pPoint->GetY();
			if( y2<pPoint->GetY() )
				y2 = pPoint->GetY();		
		}	
		itPath++;
	}while(itPath!=m_aPaths.end());

	return XFRect(x1,y1,x2-x1,y2-y1);
}